/Engine/Source/Runtime/Engine/Public/Curves/KeyFrameManipulator.h
Get the time that corresponds to the specified key handle
The time that this key exists at, or an empty container if it was not found
[TOptional](API\Runtime\Core\IO\TOptional)< TimeType > GetKeyTime ( [FKeyHandle](API\Runtime\Engine\Curves\FKeyHandle) KeyHandle ) const